feat: add city/state/country to complex, new settings page with sidebar, and Biome linting

- Added city, state, and country optional fields to Complex model
- Updated onboarding to include optional location fields
- Created new settings page with sidebar navigation (Datos del Complejo, Canchas)
- Replaced ESLint with Biome for frontend and backend linting
- Added parallel dev script with concurrently
- Migrated register-routes to use direct app.route() pattern

package.json

@@ -9,12 +9,20 @@
     "zod": "^4.3.6"
   },
   "scripts": {
+    "dev": "concurrently -n backend,frontend -c blue,green \"bun run dev:backend\" \"bun run dev:frontend\"",
     "dev:frontend": "bun --filter frontend dev",
     "dev:backend": "bun --filter backend dev",
     "build:frontend": "bun --filter frontend build",
-    "lint:frontend": "bun --filter frontend lint"
+    "lint": "bun run lint:frontend && bun run lint:backend",
+    "lint:fix": "bun run lint:frontend:fix && bun run lint:backend:fix",
+    "lint:frontend": "bun --filter frontend lint",
+    "lint:frontend:fix": "bun --filter frontend lint:fix",
+    "lint:backend": "bun --filter backend lint",
+    "lint:backend:fix": "bun --filter backend lint:fix"
   },
   "devDependencies": {
+    "@biomejs/biome": "^1.9.4",
+    "concurrently": "^9.1.2",
     "typescript": "^6.0.2"
   }
 }